In December 2017, members from different dining parties became ill after eating at the same restaurant in Minneapolis. Illness was reported from 6 separate parties who dined at the restaurant over a span of 3 dates, December 11, 14 and 16. Eighteen cases were identified. No one was hospitalized and no one died. Three stool specimens tested positive for norovirus genotype II.P16-GII.2 with identical nucleic sequences.

All 194 employees were interviewed; at the time of the interview 40 (21%) reported recent gastrointestinal illness. Employees reported onset of symptoms during December 2 through January 2. At least 7 employees reported working while ill or not fully recovered, three of which reportedly vomited in the employee restroom while at work on December 14, 17 and 22. Stool samples were collected from 2 recently ill employees. One tested positive for norovirus II.P16.II.2, and had a nucleic acid sequence identical to the patron specimens. The other tested negative for norovirus and bacterial pathogens.

The original source of contamination was not identified. However, the high number of ill food workers, food workers working while ill, bare-hand contact with ready-to-eat foods, and improper hand hygiene contributed to transmission to patrons.